Input and output circuit with reduced skew between differential signals
US6353340B1 · kind B1 · utility
5Cited by
4References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 22, 2000 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Aug 22, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/00323
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A differential-signal input and output circuit receives a pair of differential signals, and changes and outputs the pair of differential signals at almost the same time at timing when whichever changes last changes. In another differential-signal input and output circuit, when two input signals have a skew less than the delay period of delay circuits are input, the input and output circuit regards the input signals as differential signals and operates as a circuit for reducing the skew. When the skew is equal to or more than the delay period, the input and output circuit operates as an input-signal buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.